Specialties: Puppet, Security, Python, Openstack, Mesos

Sr DevOps Engineer @ Created chef cookbooks to control Hadoop and Flume services , also to control Play Framework. Mesos / Marathon / Chronos cluster administration. Migrated legacy systems to use micro services. Wrote custom python scripts to control AWS and Mesos. AWS administration using EC2, Route53, VPC and cloud watch. From February 2015 to Present (11 months) Sr Devops Engineer @ Puppet automation of Hadoop cluster and company products. Created python script to automate creation of environments includes creation of VMs / Bare Metal creation, cobbler kickstart, DNS and user authentication setup and puppet run. Using fabric python framework, deployed puppet on existing servers. Created python tool to gather reporting details of servers for better inventory control. From November 2013 to February 2015 (1 year 4 months) Sr DevOps Engineer @ Built a cloud infrastructure from the ground up using Openstack and Vmware. Automation of VM envirments using puppet and juju. Created a system to automate builds depending on hostnames using puppet rules. Created scripts to automate the creation of ldap, dns and ssh entries using python and puppet. On call duties for both Mog.com operations and the new Beats Music Service. From September 2012 to October 2013 (1 year 2 months) Sr Systems Engineer @ Rolled out the automation of a 10,000+ node environment using Xen and Puppet. Increased security by penetration testing the network and patching vulnerabilities in the process. Created customer Xen migration scripts to smoothly update customers to the latest build Designed the deployment of our future cloud storage solution From October 2011 to September 2012 (1 year) San Francisco Bay AreaSr Systems Engineer @ Worked with network devices using protocols such as OSPF, TCP, PPTP, DHCP, and DNS. Wrote custom apps, and API's using Python, C, Bash, PHP, and Javascript. Rebuilt email cluster, reducing spam by over 99%. Implemented traffic shaping, reducing annual bandwidth expenses. Migrated to a Xen virtual machine environment, reducing space, saving power, and increasing revenue. Built a modular telecommunications infrastructure using Asterisk and Xen. Worked extensively with the following technologies: CentOS, Ubuntu, Puppet, Nagios, Postfix, BIND, Xen, Asterisk, Apache, PHP, and MySQL. Discovered security flaws through penetration testing by writing custom tools to test for vulnerabilities such as SQL injections, XSS attacks, buffer overflows, and brute forcing attempts. Designed, maintained, and automated intrusion detection systems for an 8,000 node network. From August 2009 to October 2011 (2 years 3 months) Systems Engineer @ Oversaw ISP network operations, including new host deployments, upgrades, and maintenance. Resolved escalations from support. Build custom mail, and web hosting API's to handle customers needs. Build web apps for customers, and internal use Wrote security tools/scripts, and rolled out intrusion detection system to minimize security threats. Maintained systems which include: FreeBSD, Red Hat Linux, Apache, MySQL, PHP, Freeradius, Qmail, Vpopmail, PureFTP, and Tinydns. From June 2006 to August 2009 (3 years 3 months) Redding, California AreaIT Director @ Oversaw data center operations including new installs, upgrades and maintenance. Wrote custom software to monitor devices used by all customers. Remote and on-site installation of networks, and devices. test, and debugging hardware, and software. From April 2004 to June 2005 (1 year 3 months)

Chris Haessig is skilled in: Apache, Bash, Nagios, CentOS, Linux, MySQL, DNS, Cloud Computing, Ubuntu, Xen, VMware, Python, Red Hat Linux, PHP, Postfix